Wheat-fan



J.. BAM BOROUGH.

Grain Winnower.

Patented March 20, 1847.

5. Pholq-Lilhognyhen Wnhingtnm o. a

UNITED STATES PATENT OFFICE.

JNO. BAMBOROUGH, OF LANCASTERpPENNSYLVANIA.

WHEAT-FAN.

Specification of Letters Patent No. 5,031, dated March 20, 18f7.

To all whom it may concern:

Be it known that I, JOHN BAMBOROUGH, of Lancaster, 1n the county of Lancaster,

and State of Pennsylvania, have invented a new and useful Improvement in Wheat- Fans, and that the following is a full, clear, I

screens for screening the grain from cockle.

&c., and conveying 1t off separate from the grain, while it is susceptible of being converted into the common riddle fan at pleasure. I

The construction is as follows: The outside of the fan or case is like those now in use; the wings (a) are made and work in the usual way except that they are placed a little higher and the shoe (6) and hop per (0) are of common form except in the particulars about to bedescribed. In the bottom-of the shoe there is an inclined plane or board (d) that inclines downward toward the fan and directs the blast therefrom upward; near the lower end of this plane (d) there is hinged a falling door (6) shown in the figure open, and just above and parallel with the plane there is a screen (f); (g) represents a riddle in the usual place and above this there is another inclined cockle board (h) with a screen (i) above these do second screen (9 not extend back as far as the lower one,so that the grain is carried over onto the when in operation. Atthe lower end of card (it) which is shown detached at (A) are two cleets (is) inclined from the center toward each side as'shown 1 at (A) where theyterminate at a littlespout (Z) that descends through the side piece of the shoe to opening (6) as shown by dotted lines in (Fig. 1). The cockle' &o.,- that is sifted through the screen (i) is guided down the board (it) to the spouts (Z) and thence pass down through the opening (6) in the lower board with what sifts through'the second screen from whence it runs down intorthe cockle box. (m) the direction is shown by the red arrow, the wheat is made to fall down the inclinedboard (n) from off the screen and passes out in front of the cockle box (m) the other riddles and rake above are now in common use and therefore need no description or representation. When the screens are removed and the falling door (6) is closed the machine is converted into @00111111011 fan.

Having thus fully described my improvement, what I claim as my invention and de sire to secure by Letters Patent is-' The combination of the screens and cockle boards, arranged substantially in the manner and for the purpose set forth.

Signed this fifth day of September A. D. 1846.

JOHN BAMBOROUGH.

Witnesses:

J. J. GREENOUGH, WM. H. BISHOP. 

